XML 75 R61.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Loans Receivable - Loan Portfolio Aging Analysis (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | $ 545 | $ 576
Current | 948,493 | 726,651
Total commercial and consumer loans | 949,038 | 727,227
Total Loans 90 Days or More Past Due and Accruing | 0 | 61
Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 102,000 | 77,232
Total Loans 90 Days or More Past Due and Accruing | 0 | 0
Owner-occupied commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 44,462 | 34,295
Total Loans 90 Days or More Past Due and Accruing | 0 | 0
Investor commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 16,184 | 22,069
Total Loans 90 Days or More Past Due and Accruing | 0 | 0
Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 45,898 | 24,883
Total Loans 90 Days or More Past Due and Accruing | 0 | 0
Single tenant lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 374,344 | 192,608
Total Loans 90 Days or More Past Due and Accruing | 0 | 0
Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 214,559 | 220,612
Total Loans 90 Days or More Past Due and Accruing | 0 | 57
Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 43,279 | 58,434
Total Loans 90 Days or More Past Due and Accruing | 0 | 0
Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 108,312 | 97,094
Total Loans 90 Days or More Past Due and Accruing | 0 | 4
30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 465 | 410
60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 35 | 56
90 Days or More Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 45 | 110
Nonaccrual |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 167 | 235
Commercial loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 582,888 | 351,087
Commercial loans | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 29 | 0
Current | 101,971 | 77,232
Total commercial and consumer loans | 102,000 | 77,232
Commercial loans | Owner-occupied commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 44,462 | 34,295
Total commercial and consumer loans | 44,462 | 34,295
Commercial loans | Investor commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 16,184 | 22,069
Total commercial and consumer loans | 16,184 | 22,069
Commercial loans | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 45,898 | 24,883
Total commercial and consumer loans | 45,898 | 24,883
Commercial loans | Single tenant lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 374,344 | 192,608
Total commercial and consumer loans | 374,344 | 192,608
Commercial loans | 30-59 Days Past Due | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 29 | 0
Commercial loans | 30-59 Days Past Due | Owner-occupied commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 30-59 Days Past Due | Investor commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 30-59 Days Past Due | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 30-59 Days Past Due | Single tenant lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 60-89 Days Past Due | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 60-89 Days Past Due | Owner-occupied commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 60-89 Days Past Due | Investor commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 60-89 Days Past Due | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 60-89 Days Past Due | Single tenant lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 90 Days or More Past Due | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 90 Days or More Past Due | Owner-occupied commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 90 Days or More Past Due | Investor commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 90 Days or More Past Due | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | 90 Days or More Past Due | Single tenant lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial loans | Nonaccrual | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 0 | 0
Commercial loans | Nonaccrual | Owner-occupied commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 0 | 0
Commercial loans | Nonaccrual | Investor commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 0 | 87
Commercial loans | Nonaccrual | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 0 | 0
Commercial loans | Nonaccrual | Single tenant lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 0 | 0
Consumer loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 366,150 | 376,140
Consumer loans | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 368 | 218
Current | 214,191 | 220,394
Total commercial and consumer loans | 214,559 | 220,612
Consumer loans | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 20 | 0
Current | 43,259 | 58,434
Total commercial and consumer loans | 43,279 | 58,434
Consumer loans | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 128 | 358
Current | 108,184 | 96,736
Total commercial and consumer loans | 108,312 | 97,094
Consumer loans | 30-59 Days Past Due | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 300 | 161
Consumer loans | 30-59 Days Past Due | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 20 | 0
Consumer loans | 30-59 Days Past Due | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 116 | 249
Consumer loans | 60-89 Days Past Due | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 23 | 0
Consumer loans | 60-89 Days Past Due | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer loans | 60-89 Days Past Due | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 12 | 56
Consumer loans | 90 Days or More Past Due | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 45 | 57
Consumer loans | 90 Days or More Past Due | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer loans | 90 Days or More Past Due | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 53
Consumer loans | Nonaccrual |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 167 | 148
Consumer loans | Nonaccrual | Residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 103 | 25
Consumer loans | Nonaccrual | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | 0 | 0
Consumer loans | Nonaccrual | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total commercial and consumer loans | $ 64 | $ 123

X
- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=inbk_OwnerOccupiedCommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=inbk_SingleTenantLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=inbk_OtherConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |